摘要
基于断裂力学的理论,对断层应力强度因子进行了复合及分析,研究了库区断层在库水荷载(包括库水荷载所产生的附加应力场和超孔隙水压力)和区域构造应力场叠加作用下,发生诱发地震时所产生的能量及震级,并建立了相应的计算公式及得出相应影响参数,证明了在水库运行过程中水位频繁变动加大地震诱发可能性的结论正确性。
Based on the theory of fractural mechanics,stress intensity factors of the fault of the composite,an analysis is made of the reservoir water load fault in the library（including the reservoir water load generated by the additional stress and excess pore water pressure） and the regional tectonic stress field superimposed,the occurrence of induced earthquakes generated by the energy and magnitude,and the corresponding formula and the corresponding impact parameters obtained show that in the reservoir water level during the operation of frequent changes increases the possibility of earthquake-induced conclusion validity.
出处
《中国农村水利水电》
北大核心
2010年第10期65-68,共4页
China Rural Water and Hydropower
关键词
诱发地震
库区断层
构造应力
水位涨落
力学机制
induced seismicity
reservoir fault
structural stress
water level fluctuation
mechanical mechanism
